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Mariana Swiftlet

Aerodramus bartschi

Vulnerable
Chiều Dài Sải Cánh
17,7 cm
Khối Lượng
7,25 g
Họ
Apodidae
Bộ
Caprimulgiformes

The Mariana Swiftlet (Aerodramus bartschi) is a bird species in the family Apodidae (swifts), within the order Caprimulgiformes (nightjars & swifts). Recorded measurements include a wingspan of 17.7 cm and a weight of 7.2 g. The IUCN Red List classifies it as Vulnerable.

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Giới Thiệu

A small swiftlet (10-11 cm) endemic to the Mariana Islands of the western Pacific (Guam, Saipan, Rota, Tinian). Dark brown plumage. Aerial insectivore. Colonial cave nester using echolocation. Population severely declined on Guam due to the brown tree snake.

Physical Description

Measurement Value Imperial
Chiều Dài Sải Cánh 17,7 cm 7.0 in
Khối Lượng 7,25 g 0.26 oz

Nhận Dạng

Bộ Lông

Tiny; dark brownish-black upperparts; pale grey-buff rump band; underparts pale whitish-grey; forked tail; Mariana Islands endemic and vulnerable; very small for the genus with concolorous brownish tone and subdued rump contrast.

Habitat & Range

Phạm Vi Địa Lý

Endemic to the Mariana Islands (Guam, Saipan, and adjacent islands). Resident in forested areas; nests in limestone caves. Endangered on Guam.

Diet & Feeding

Entirely airborne insectivore; feeds on minute flying insects and web-dispersing spiders over open habitats.

Tình Trạng Bảo Tồn

Vulnerable
IUCN Red List

Hành Vi & Sinh Sản

Làm Tổ

Nest type: HC.

Số Trứng

1

Âm Thanh

Tiếng Hót

Very high, thin twittering; tiny and high-pitched; 'tsit-tsit' over Guam and Saipan; audible echolocation clicks in cave roosts; endangered; vocal mainly near nesting caves

Phân Loại Học

Kingdom Animalia
Phylum Chordata
Class Aves
Bộ Caprimulgiformes (Nightjars & Swifts)
Họ Apodidae (Swifts)
Genus Aerodramus
Loài Aerodramus bartschi

Distribution

Mariana Swiftlet has been recorded in 2 countries.

Hiện Diện Not recorded

countries highlighted

External Databases

Câu Hỏi Thường Gặp

What does the Mariana Swiftlet eat?
Entirely airborne insectivore; feeds on minute flying insects and web-dispersing spiders over open habitats.
Where does the Mariana Swiftlet live?
Endemic to the Mariana Islands (Guam, Saipan, and adjacent islands). Resident in forested areas; nests in limestone caves. Endangered on Guam.
Is the Mariana Swiftlet endangered?
The Mariana Swiftlet has a conservation status of Vulnerable.
How does the Mariana Swiftlet nest?
Nest type: HC.
What does the Mariana Swiftlet sound like?
Very high, thin twittering; tiny and high-pitched; 'tsit-tsit' over Guam and Saipan; audible echolocation clicks in cave roosts; endangered; vocal mainly near nesting caves
How big is the Mariana Swiftlet?
The Mariana Swiftlet has a wingspan of 17.7 cm, weight of 7.25 g.
What order and family does the Mariana Swiftlet belong to?
The Mariana Swiftlet (Aerodramus bartschi) belongs to the order Caprimulgiformes and the family Apodidae.

Similar Birds

Other species in the Apodidae family

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